1. Deductive Reasoning
Chapter 2
Lesson 4

2. Deductive Reasoning
The process of reasoning logically from given statements or facts to a conclusion.
It is also called logical reasoning

3. Law of Detachment
If the hypothesis of a true conditional is true, then the conclusion is true.
If the conditional is true and P is true then Q must be true.

4. Law of Syllogism
Allows you to state a conclusion from two true conditional statements when the conclusion of one statement is the hypothesis of the other statement.
Meaning if P then Q is true, and if Q then R is true, then if P then R must be true.

5. Page 108
Look at Problem 2 for an example of use of the law of Syllogism